/**
    Copyright (C) 2012 Guido Ludwig

    This file is part of JATT.
	http://code.google.com/p/jatt/

    JATT is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package de.guidoludwig.jatt.chain.commands;

import java.io.File;

import de.guidoludwig.jatt.JATT;
import de.guidoludwig.jatt.chain.JATTContext;
import de.guidoludwig.jatt.chain.commands.config.CleanupImagesConfig;
import de.guidoludwig.jatt.util.ArtworkFilenameFilter;

/**
 * @author Guido Ludwig
 */
public class CleanupCommand extends JATTCommand<CleanupImagesConfig> {


	@Override
	protected boolean execute0(JATTContext context) {
		cleanImagesFromDirectory(context);
		cleanWorkingDirectory(context);
		return false;
	}

	private void cleanImagesFromDirectory(JATTContext context) {
		File baseDir = context.getDirectory();
		for (String fileName : baseDir
				.list(ArtworkFilenameFilter.INSTANCE_PREFIX)) {
			File candidate = new File(context.getDirectory(), fileName);
			if (!ArtworkFilenameFilter.INSTANCE.accept(candidate, fileName)) {
				context.removeFromAlternativeImages(candidate);
				candidate.delete();
				JATT.debug("Deleted : " + candidate.getAbsolutePath());
			}
		}
	}
	
	private void cleanWorkingDirectory(JATTContext context) {
		File workingDirectory = context.getWorkingDirectory();
		for (String fileName : workingDirectory.list()) {
			File candidate = new File(workingDirectory, fileName);
			context.removeFromAlternativeImages(candidate);
			candidate.delete();
			JATT.debug("Deleted : " + candidate.getAbsolutePath());
		}
		workingDirectory.delete();
	}

}
